Home / 11,349.92-15,661.20-6,380.96

Finding the Fourth Proportional to 11,349.92, 15,661.20 and 6,380.96

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Solution

The fourth proportional to 11,349.92, 15,661.20 and 6,380.96 is: 8,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.92 : 15,661.20 = 6,380.96 : x
  2. Step 2: Convert to fraction form
    11,349.92/15,661.20 = 6,380.96/x
  3. Step 3: Cross multiply
    11,349.92x = 15,661.20 × 6,380.96
  4. Step 4: Simplify right side
    11,349.92x = 99,933,490.75
  5. Step 5: Solve for x
    x = 99,933,490.75/11,349.92
  6. Step 6: Final answer
    x = 8,804.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.